7.4 sec in total
2 sec
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Welcome to experymentarium.pl homepage info - get ready to check Experymentarium best content for Poland right away, or after learning these important things about experymentarium.pl
Ośrodek typu Discovery Center, w którym nauka nie ma tajemnic. Tu nigdy nie jest nudno! Tu każdy może sprawdzić możliwości swojego intelektu.
Visit experymentarium.plWe analyzed Experymentarium.pl page load time and found that the first response time was 2 sec and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
experymentarium.pl performance score
name
value
score
weighting
Value3.7 s
30/100
10%
Value5.8 s
15/100
25%
Value11.9 s
4/100
10%
Value1,120 ms
23/100
30%
Value0.244
51/100
15%
Value48.4 s
0/100
10%
1964 ms
143 ms
1030 ms
241 ms
244 ms
Our browser made a total of 108 requests to load all elements on the main page. We found that 52% of them (56 requests) were addressed to the original Experymentarium.pl, 21% (23 requests) were made to Static.xx.fbcdn.net and 16% (17 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Experymentarium.pl.
Page size can be reduced by 1.1 MB (8%)
13.4 MB
12.3 MB
In fact, the total size of Experymentarium.pl main page is 13.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 12.6 MB which makes up the majority of the site volume.
Potential reduce by 30.9 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 4.6 kB, which is 11% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 30.9 kB or 77% of the original size.
Potential reduce by 446.1 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Experymentarium images are well optimized though.
Potential reduce by 292.2 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 292.2 kB or 64% of the original size.
Potential reduce by 283.6 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Experymentarium.pl needs all CSS files to be minified and compressed as it can save up to 283.6 kB or 84% of the original size.
Number of requests can be reduced by 49 (46%)
106
57
The browser has sent 106 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Experymentarium. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.
experymentarium.pl
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experymentarium.pl accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
Links do not have a discernible name
experymentarium.pl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
Issues were logged in the Issues panel in Chrome Devtools
experymentarium.pl SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document doesn't use legible font sizes
Tap targets are not sized appropriately
PL
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Experymentarium.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it does not match the claimed English language. Our system also found out that Experymentarium.pl main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
experymentarium.pl
Open Graph description is not detected on the main page of Experymentarium. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: